The syb package

This package contains the generics system described in the
Scrap Your Boilerplate papers (see
http://www.cs.uu.nl/wiki/GenericProgramming/SYB).
It defines the Data class of types permitting folding and unfolding
of constructor applications, instances of this class for primitive
types, and a variety of traversals.

Downloads

Maintainer's Corner

Readme for syb

Readme for syb-0.3.5

syb: Scrap Your Boilerplate!
================================================================================
Scrap Your Boilerplate (SYB) is a library for generic programming in Haskell. It
is supported since the GHC >= 6.0 implementation of Haskell. Using this
approach, you can write generic functions such as traversal schemes (e.g.,
everywhere and everything), as well as generic read, generic show and generic
equality (i.e., gread, gshow, and geq). This approach is based on just a few
primitives for type-safe cast and processing constructor applications.
It was originally developed by Ralf Lämmel and Simon Peyton Jones. Since then,
many people have contributed with research relating to SYB or its applications.
More information is available on the webpage:
http://www.cs.uu.nl/wiki/GenericProgramming/SYB
Features
--------
* Easy generic programming with combinators
* GHC can derive Data and Typeable instances for your datatypes
* Comes with many useful generic functions
Requirements
------------
* GHC 6.10.1 or later
* Cabal 1.6 or later
Bugs & Support
--------------
Please report issues or request features at the bug tracker:
http://code.google.com/p/scrapyourboilerplate/issues/list
For discussion about the library with the authors, maintainers, and other
interested persons use the mailing list:
http://www.haskell.org/mailman/listinfo/generics